Governor



April 14, 1931. E, FA KAS 1,800,612

GOVERNOR Filed April 18, 1929 2 Sheets-Sheet l IVENTOR BYE; MM.

ATTORNEY- April 14, 1931. E. J. FARKAS 1,800,612

GOVERNOR Filed April 18, 1929 2 Sheets-Sheet 2 (f, /i. l ATTORNEY5Patented Apr. 14, 193i UNITED STATES PATENT. OFFICE.

EUGENE J. FARKAS, OF DETROIT, MIOHIGAN, ASSTGNOR TO FORD MOTOR COMPANY,OF

DEARBOBN, MICHIGAN, A CORPORATION OF DELAWARE GOVERNOR Application filedApril 18,

The object of my invention is to provide a governor of simple, durableand inexpensive construction.

A further object of my invention is to provide a governor of centrifugaltype which may be conveniently mounted adjacentto the front end of anengine and which may be readily adjusted from the outside of thegovernor.

Still a further object of my invention is to provide a governor whichmay be secured to the face of the magneto driving gear and whichrequires no rotating hearings to secure proper functioning of thedevice.

Still a further object of my invention is to provide a governor having apair of centrifugal weights, a longitudinally movable member actuated bythese weights, and a single bearing ball placed between this member andan operating arm so that when the weights and movable member arerotated, the ball hearing will form the bearing between the rotatingmember and the relatively stationary operating arm.

Still a further object of my invention is to provide governor having apair of centrifugal weights in position to move oppositely and outwardlyfrom a central axis, a cup shaped member partially enclosing theseweights, and having an annular rib or bead formed near the rim portionof this cup shaped member to form a stop forthe centrifugal weights sothat these weights will be free to return to their inoperative positionwithout bending against the rim portion of the cup member.

With these and other objects in view my invention consists in thearrangement, construction and combination of the-various parts of myimproved device, as described in the specification, claimed in theclaims and illustrated in the accompanying drawings, in which: V

Figure 1 shows a side elevation of the front portion of a tractor havingmy improved governor mounted thereon, part of the installation.

Figure 2 shows a vertical central sectional view through the governor.

1929. Serial No. 356,277.

Figure 3 shows a sectional view taken on the line 33 of Figure 2.

Figure 4 shows a sectional view taken on the line 4% of Figure3, thegovernor weights being extended to their outward positions, and

Figure 5 shows a sectional view taken on the line 5-5 of Figure 4.

Referring to the accompanying drawings, I have used the referencenumeral 10 to illustrate generally the engine portion of a tractorhaving a radiator 11, fuel tank 12, and front wheels 13. The engine 10is provided with an exhaust manifold and pipe 14. An intake manifold 15is also provided, and an air intake conduit 16 connects this intakemanifold with an air washer 17.

The exhaust manifold 14 is of the type known as ahot spot manifold andis provided with a fuel vaporizer 18 having a gas pipe 19 leading to theintake manifold where the carburetionof the fuel takes place. Thatportion of the intake manifold, adjacent to the point at which the gasline 19 connects therewith is termed the carburetor 20 and is providedwith a conventional butterfly valve, not shown in the drawings. A manualcontrol rod 21 is connected with this butterfly valve to therebymanually control the flow of gas to the engine.

A second control rod 22 is also connected with this butterfly valve insuch a manner that the rotation of the rod 21 is always dependent uponthe rod 22. hen the rod 22 is rotated to what is known as the openposition, the rod 21 may be manually rotatedto thereby rotate thebutterfly valve and control the flow of gas to the manifold 15. However,when the rod 22 is rotated to the closed position it closes thebutterfly valve independent of the rod 21 to thereby control the flow ofgas to the engine independent of the manual operating rod. The rod 22 isrotated by the applicants improved governor while the rod 21 is rotatedby a lever adjacent tothe steering wheel of the tractor. 3

The front end of the engine 10 is provided with a plate 23 having anextension 24 to which the front axle is secured and upon by the frontend plate 23.

The gear is provided with a shaft 26 formed integral therewith and whichis mounted in a bearing 27 formed in the en- 'gine 10. A coupling 28 isprovided on the rear end of the shaft 26 to drive a magneto ordistributor for the tractor.

A governor drive shaft 29 is secured to the forward side of the gear 25by means of a flange 30 and screws 31. This shaft eX- tends forwardlyfrom the gear 25 through an opening in the front end plate 23. A cupshaped guard member 32 is also secured to the gear 25 by means of thescrews 31 and entends forwardly in position to partially house thegovernor weights. A pair of oil scoops 61 are punched in the rim portionof the cup 32 so that when the cup is rotated oil may be scooped up bythe scoops 61 to thereby lubricate the working parts of the device.

The shaft 29 is provided with an axial bore 33 in its outer end. Adriving pin 34 extends through the shaft 29 transversely of the opening33 near the outer end of the shaft.

1 A pair of governor weights 35' are rotatably mounted on this drivingpin 34 by means of an ear 36 on each weight. The inner sides of theweights 35, adajcentto the shaft 29, arerecessed as at 37 to allow theweights to completely encircle the shaf 29 when in their closedpositions.

From the foregoing, it may be seen that when the driving gear 25 isrotated, the shaft 29 will be rotated thereby rotating the pin 34 andthe weights 35 through theears 36. These weights 35 will tend to fiyoutwardly, due to centrifugal force, and rotate on thepin 34. The cup 32is provided with the annular bead or rib 33 which acts as a weightsreturning to their closed position when stationary. V r

A transverse pin 39 extendsthrough the weights 35 and protrudes a shortdistance from each side of the weights. are disposed rearwardly of theears 36 and These pins forwardly of the center of gravity of eachweight. A pair of extension coil springs 40 connect the protruding endsof the pins 39 so as to keep the weights 35 in their closed orinoperative positions with a considerable spring tension.

A second shaft 41, having its inner end slottedat 42, is mounted in thebore 33 in the shaft 29 so that the pin 34 extends through the slot. 42.By this construction the shaft'41 is at all times driven with the shaft29 but is free to move longitudinally thereof.

A U shaped plate 43 is secured to the forward end of the shaft 41 withits arms extending rearwardly in position to co-act with a pair ofbosses 44 formed on the forward ends of the weights 35. A hearing ball45 is secured in a suitable recess in the forward end of the shaft 41 sothat any thrust produced by this shaft 41 will be taken through thisball 45. a V

A housing 46 encloses the opening in the front end plate 23 and issecured thereto by means of the flange 47 and bolts 48. A shaft 49 isrotatably mounted in the upper part of this housing 46 and extendedtransversely therethrough, and a bell crank lever 50 is secured insideof this housing to the shaft 49 by means of the pin 51. One of the arms52 of the bell crank 50 is adjacent to the ball bearing 45 and the otherarm 53 is in position so that a compression the housing 46 and a link58- connects this lever 60 with a crank 59 formed on the forward end ofthe operating rod 22.

The operation of the governor is as follows:

The gear 25 is rotated at crank shaft speed by the engine 10 and therebyrotates .the

shaft 29, the weights 35, together with the shaft 41, the plate 43, andtheball 45. The pair of springs 40, being under a considerable tensioneven when the weights 35. are

in their inoperative positions, urge the weights together against thecentrifugal force produced therein. When a certain rotating speed oftheweights 35 has been reached, the centrifugal force induced in theweights will overcome the resistance of the springs 40 and the weightswill move out? wardly thereby moving the plate 43 and shaft 41forwardly. The ball 45 which is secured in the shaft 41 rotates the bellcrank lever 50 and shaft 49 thereby rotating the rod 22 through thelever 60, the link 58, and the crank 59. v

One of the features of the applicants device is that the governorweights will be held in their closed position for all engine speeds upto a predetermined speed and will then fly outwardly to their extremepositions with a very small increase in speed to thereby operate thecontrol valve by a very small weights were of the graduated opening typeit would be impossible to secure maximum 7 power or full opening of thebutterfly valve when the tractor was pulling hard in low gear. Thisdesirable result is obtained by the position of the springs 40 relativeto the driving pin 34.

As the governor weights 35 move to their outward positions, the springs40 are extended which induces a greater spring tension in these springsbut this is counteracted by a proportionately greater centrifugal forcein the governor weights caused by them travelling at a greater speed dueto their greater radius of rotation. The pins 39, being laced forwardlyof the center of gravity 0? the weights 35, so control the extension ofthe springs 40 that the centrifugal force induced in these weights bythe larger radius of rotation increases slightly faster than thecounteracting force of the springs 40.

The effect of this construction is to allow 1 the engine to operateunder full throttle up to a given speed'to thereby develop maximum powerat all speeds up to the maximum speed allowed.

The regulation of this device is obtained by means of adjusting thescrew 55 which varies the compression on the spring 54. When theadjusting screw 55 is screwed down, the spring 54 is compressed and agreater force must be exerted on the arm 51 by the ball 45 to operatethe arm 49. This form of adjustment is very simple and may be operatedfrom outside of the device in a very convenient manner.

Among the many advantages arising from the use of my improved device, itshould be pointed out that I ha e secured an engine governor which maybe conveniently installed on an engine and which will be fully protectedand enclosed, thereby completely protecting the operating parts of thegovernor. A further advantage results in that the governor is adjustableby means of a simple screw adjustment placed on the outside of thedevice and in a vertical position so that it is easily accessible for awrench.

A further advantage results because I have eliminated a number ofdelicate parts ordinarily provided in governors. The shaft 41, plate 43,and ball 45 being a unit, thus provides a very much simpler connectionbetween the governor weights and the operating arm than has heretoforebeen provided. A further advantage results because there are no rotatingbearings, sleeves, yokes, or other continuously sliding parts, as arecustomarily provided in governors. The point contact of the ball bearing45 with the arm 51 is the only continuously operating part of thedevice, and due to the nature of this contact, a practicallyindefinitelife can be expected. The simple ribbed stop member whichprevents binding of the governor weights in their extreme outwardpositions is another improvement over the existing governorconstruction.

Some changes may be made in the arrangement, construction andcombination of the various parts of my improved device without departingfrom the spirit of my invention and it is my intention to cover by myclaims such changes as may reasonably be included within the scopethereof.

I claim as my invention 1. In a governor, a driving shaft having anaxial bore therein, a pin extended transversely through said drivingshaft and said axial bore, a weight rotatably mounted on the said pin, adriven shaft reciprocally mounted in said bore having a plate securedthereto in position to co-act with the said Weight, and a transverseslot formed in the said driven shaft through which said pin extendsthereby forming a positive rotary driving connection between saidshafts.

2. In a governor, a driving shaft having an axial bore therein, a pinextended transversely through the said driving shaft and having a pairof weights pivotally mounted thereon, a pair of springs urging saidweights toward each other, a shaft driven by and free to movelongitudinally with respect to said pin, a plate secured to the saiddriven shaft in position to co-act with the said weights, a transverselymounted shaft hav-' ing a bell crank lever thereon, and an adjustablecompression spring, one of the arms of said bell crank contacting withthe said driven shaft and the other arm contacting with said compressionspring so as to adjustably control the total spring pressure on the saidweights.

3. In a governor, a shaft having an axial bore, a second shaft having atransverse slot therein adapted to reciprocate in said bore, a pinextended through said first described shaft and the bore therein and theslot in the second described shaft, a governor weight mounted on saidpin, and means for operatively connecting said weight with the seconddescribed shaft whereby centrifugal force may cause the weight toactuate the second described shaft to move same telescopically relativeto the first described shaft.

EUGENE J. FARKAS.

